baber/WOPTO huggingface dataset:
Patent GB-1218215-A (GB)
Title: Electrically heating construction materials
Inventor: ANDO MASAO
IPC: F24D13/02
Filed: 1968-05-15
Abstract: 1,218,215. Heating roads, &c. CHISSO CORP. 15 May, 1968, No. 23046/68. Heading H5H. A road, floor, wall, &c. is heated by a heating element buried therein comprising a magnetic steel pipe 2 in which is disposed an insulated wire 3, the wire 3 being connected to one terminal of an A.C. source 1 and to one end of the pipe at 4, the other end 5 of the pipe being connected to the other terminal of the source 1. The current flows through wire 3 and returns through pipe 2, flowing in the inner surface only of pipe 2. Steel reinforcing shorting plates 7 are provided. A multi-phase source, and more than one pipe may be provided. The heat generated in the inner surface only of the pipe is transmitted to the outer surface of the pipe by thermal conduction through the pipe wall.
Patent GB-1346460-A (GB)
Title: Halohydrin synthesis
IPC: C08F8/18
Filed: 1971-04-19
Abstract: 1346460 Halohydrins UNIROYAL Inc 19 April 1971 [4 March 1970] 23046/71 Heading C2C [Also in Division C3] Halohydrins are obtained by mixing together (a), (b) and (c), wherein (a) is an olefinic substance having a double bond not activated by an adjacent aromatic radical selected from: (I) a (C 5  to C 20 ) cyclic mono-olefin hydrocarbon, (II) a (C 4  to C 20 ) diolefin hydrocarbon, and (III) a cyclic sulphone derived from (II); (b) is aqueous H 2 O 2  and (c) is aqueous HCl or HBr, the concentration of H 2 O 2  in the aqueous phase being from 0À1 to 20% by weight and the concentration of HCl or HBr in the aqueous phase being from 0À1 to 32% by weight, the mixture being subjected to a temperature from 0 to 100 C. whereby the chlorohydrin or bromohydrin of said olefinic substance (a) is formed. Examples are given where the olefin employed is cyclohexene, 1,5-cyclooctadiene, 2,5-dihydrothiophene-1,1-dioxide and butadiene. In one example 2-chlorocyclohexanol is treated with aqueous NaOH to form cyclohexene oxide.
Patent GB-1462922-A (GB)
Title: Fault detecting and indicating apparatus
IPC: G01F23/70
Filed: 1974-05-23
Abstract: 1462922 Indicating faults NIPPONDENSO CO Ltd and TOYOTA JIDOSHA KOGYO KK 23 May 1974 [2 June 1973] 23100/74 Heading G1U [Also in Division F2]  A fault indicator includes a differential relay including two oppositely wound coils, one of which becomes de-energized on the occurrence of a fault, causing the field of the other coil to actuate a magnetic switch which operates an indicator and also short circuits the de-energized coil. Switch 9 is normally closed, thus coils 3, 4 are both energized and their fields cancel out leaving reed switch 5 open. On switch 9 opening, coil 3 is de-energized, and the field of coil 4 closes the switch 5 allowing current to flow through indicator lamp 8. A path is also closed through resistor 1, diode 7 and switch 5 which short-circuits the coil 3 such that if switch 9 now closes, e.g. through vibration, coil 3 remains de-energized. The bulb 8 is tested by connecting switch 14 to the positive supply, whereon transistor 12 conducts and the bulb should light. Other embodiments involve a delay between the occurrence of a fault and the opening of switch 9 to obviate response to spurious events Figs. 2, 3 (not shown) and modifications to utilize a normally open switch 9 Fig. 3 (not shown). The device may be used to indicate the low level of oil in a pan or a vehicle in which case preferably two reed-switches 9 are used in parallel and mounted at right-front and left-rear, these being operated by magnetic floats. Another embodiment is used to detect the wear of a brake pad lining Figs. 4, 5 (not shown). The test circuit is similar to the Fig. 1 embodiment except that switch 9 is omitted, the bottom end of the coil 3 being grounded and a wire embedded in the brake pad forms the connection between resistor 1 and coil 3. Thus if this point is grounded, coil 3 is de-energized and the circuit operates as before.
Patent GB-405567-A (GB)
Title: Improvements in road vehicles with loading gear
IPC: B60P1/36
Filed: 1933-08-18
Abstract: 405,567. Loading vehicles; conveyers; road-scavengering. EBERHAHD, A., 3a, Kohlstrasse, Munich, Germany. Aug. 18, 1933, No. 23108. [Classes 78 (i) and 78 (iv).] A self-propelled vehicle for picking up snow, sand, &c. is fitted with a body 5 or platform movable to the rear for unloading, and with a removable scraper-and-trough conveyer 13 which extends over the body and down over the front of the vehicle. The front part of the conveyer is adjustable from the driver's seat about a hinge 21., and the conveyor is actuated and the vehicle body moved backwards or forwards by power from the vehicle motor under control by clutches operated from the driver's seat. As shown, the body 5 is of box type divided into compartments 4. The body is movable on rollers by gearing engaging in a rack or racks 6, and is provided with a hinged floor or flaps which fall open when moved rearwardly. The front part of the conveyer is adjusted by hand-gear 24, 23, 22. The conveyer comprises plates 19 hinged on the chains with limited angular movement and working in a trough which is provided at the front end with diverging wings 18<1>.
Patent GB-914566-A (GB)
Title: Process of preparing fatty acid esters of hydroxyalkane sulphonic acids
Filed: 1960-07-01
Abstract: Fatty acid esters of hydroxyalkane sulphonic acids are prepared by heating a hydroxyalkane sulphonic acid, which may be halogen-substituted, or a mixture of such acid and not more than 50% by weight of its sulphonate salt, with a fatty acid and forming the fatty acid ester of the hydroxyalkane sulphonic acid at a temperature of 100-150 DEG C. while simultaneously removing the water of reaction.  The product may be subsequently neutralised by a batchwise or continuous process to give the alkali metal, ammonium or amine, especially mono-, di- or tri-ethanolamine, salts.  The water may be removed by azeotropic distillation or by heating to 100 DEG -150 DEG C. under reduced pressure.  Reagents specified include dihydroxypropane sulphonic acid, 2-hydroxybutane-3-sulphonic acid, 2-hydroxybutane-1-sulphonic acid and fatty acids having 8-22 carbon atoms, for example those derived from hydrogenated natural fats such as coconut oil, palm kernel oil and tallow.  The iodine value of unsaturated acids is preferably not greater than 8 and more preferably is less than 4. The free hydroxy-alkane sulphonic acids may be prepared from a concentrated solution of their sodium or potassium salts by treatment with ionexchangers.  The esterification may be performed batchwise or as a continuous process using a thin film of reactants.  In examples: (1) isethionic acid and lauric acid are reacted together and the product kneaded with triethanolamine; (2) lauric acid and hydroxypropane sulphonic acid containing about 10% of its sodium salt are dissolved in some preformed reaction product, the resultant product being neutralised with ammonia; (3) 1-chloro-2-hydroxypropane sulphonic acid containing about 8% of its sodium salt is reacted with a 10% excess of myristic acid and the product kneaded with concentrated sodium carbonate solution; (4) isethionic acid containing 5%-10% of its sodium salt and a fatty acid mixture derived from hydrogenated coconut oil are dissolved in some pre-formed estersulphonic acid and the reaction product is neutralised with a mixture of sodium hydroxide and sodium disilicate solutions or with sodium disilicate solution alone.  The products are wetting, washing and penetrating agents.
Patent GB-422893-A (GB)
Title: Improvements in and relating to electric resistance heaters
IPC: H05B3/06
Filed: 1934-08-10
Abstract: 422,893. Making electric resistances. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 10, 1934, No. 23171. Convention date, Aug. 12, 1933. [Classes 83 (ii) and 83 (iv)] [See also Group XXXVI] Soldering.-An insulating sleeve 14 is secured in a fluid impervious manner to the terminal 13 and the sheath 12 of an electric resistance heater by coating the sleeve with metal at suitable portions of its surface and brazing or soldering these areas to the terminal and sheath. The sleeve 14 may be provided with a band of metal coating 17 round one end which is brazed or soldered to the sheath 12. The other end of the sleeve is provided with a metal coating which forms a brazed or soldered joint 24 with the terminal 13.
Patent GB-373496-A (GB)
Title: Improvements in or relating to portable vulcanizers
IPC: B29C35/00
Filed: 1931-08-18
Abstract: 373,496. Portable vulcanizers. ARTOIS, J. M. D', 15, Grand' Place, Brussels. Aug. 18, 1931, No. 23260. [Class 70.] A portable vulcanizer comprises a supporting plate and a heating plate each with a centrally upstanding sleeve and a screw clamping means, the sleeve of the heating plate constituting a combustion chamber provided with inner radial baffle ribs forming part of the sleeve wall and the sleeve of the supporting plate being provided with notches to be engaged by the clamp. Fig. I shows the supporting plate with sleeve 7 and notches 5, Figs. 3 and 4 show the heating plate with combustion chamber containing ribs 9 and into which liquid fuel is poured, and Fig. 5 shows the clamp 10, engaging a threaded rod and 4 engaging notches 5.
Patent GB-921239-A (GB)
Title: Improvements in or relating to a process for producing zinc from zinc concentrates coaining arsenic
Inventor: DERHAM LESLIE JACK
IPC: C22B19/04
Filed: 1960-07-04
Abstract: Zinc is produced from zinc concentrates containing arsenic by smelting in a blast furnace, conducting the vapours produced which contain Zn and As to a condenser, where they are shock chilled by a circulating stream of molten lead to condense the zinc vapour, and cooling the lead, e.g. to 450 DEG  C., by passing along cooled launders into a settler to separate out the zinc, the surface of the settler being preferably covered with a molten ZnCl2 flux, the arsenic being removed by adding aluminium to the circulating lead, e.g. either before it enters the condenser or in the sump of a pump circulating lead from condenser to settler, so as to precipitate the lead insoluble compound AlAs.  Any iron present with the zinc vapour may be removed as lead insoluble AlFe by adding aluminium in excess of that required to remove arsenic; excess aluminium remaining is preferably removed by reaction with the ZnCl2 flux.  Any arsenic remaining in the zinc after treatment with aluminium may be removed by treatment with sodium. The aluminium may be added as an Al-Zn alloy containing not more than 20% Al and melting below 500 DEG  C., scrap Al-Zn die-casting alloy containing 4% Al, Al-Si alloy, or a mixture of above with scrap aluminium.  Specifications 735,043 and 800,586 are referred to.
Patent GB-484441-A (GB)
Title: Improvements in or relating to electric insulators
IPC: H01B17/24
Filed: 1937-08-25
Abstract: 484,441. Insulators. STANDARD TELEPHONES & CABLES, Ltd. Aug. 25, 1937, No. 23333. Convention date, Nov. 20, 1936. [Class 36] An insulator for spacing and transposing the wires 10, 12 of a transmission line comprises a flat body 17 provided on its upper and lower faces respectively with raised portions 6, 8, the portions 6 forming an S-shaped guide for directing the wire 12 across the upper face of the body 17, and the portions 8 forming a similar guide for leading the wire 10 across the lower face of the body. In the construction shown in Fig. 1, which is for use at points where the transmission line is supported by poles, the insulator is formed with an internally screwthreaded boss 13 adapted to screw on a supporting pin carried by the pole. Fig. 2 shows a construction of insulator for use between poles.
Patent GB-1471737-A (GB)
Title: Process for production of monoazo dyes
IPC: C09B62/473
Filed: 1974-05-24
Abstract: Novel monoazo dyestuffs of the formula (1) <IMAGE> in which M denotes hydrogen or an alkali metal, such as sodium or potassium, X denotes chloroacetyl, one of the two symbols Y denotes hydrogen and the other of the two symbols Y denotes a group of the formula -SO3M and Z denotes  alpha -bromoacryloyl or  alpha , beta -dibromopropionyl, are prepared by diazotising a compound of the formula (2) <IMAGE> and coupling the diazonium compound thus obtained with a coupling component of the formula (3) <IMAGE> From the monoazo dyestuffs obtained, in which Z denotes alpha , beta -dibromopropionyl, hydrogen bromide can also be removed by reaction with an alkali in order to prepare corresponding dyestuffs in which Z denotes  alpha -bromoacryloyl. The dyestuffs are suitable for dyeing or printing nitrogen-containing fibres, such as wool, silk and polyamides, as well as leather. If the dyestuffs are used for dyeing wool, a very high dyestuff fixation can be obtained, the dyed product thus obtained having a very clear colour with outstanding light- and perspiration-fastness, but particularly with outstanding fulling and washing fastness.
Patent GB-1011448-A (GB)
Title: Improvements in or relating to the production of metal crarbide granules
Inventor: DEVELLARD JACQUES
IPC: C01B31/30
Filed: 1964-06-05
Abstract: A metal carbide, particularly a uranium carbide, ingot is submitted to localized fusion under vacuum to form drops which are received on a cooled plate to form granules.  The ingot preferably sintered, may be disposed vertically above and close to the plate, and may be provided with means for lowering it at a rate related to the fusion of its lower end.  Fusion is preferably carried out by electron bombardment using at least one electron beam (see Division H1).  The plate, e.g. of copper and cooled by water, is rotatable or sloping, or arranged as a moving belt, whereby the granules are removed as formed, and either collected, or discharged directly into a crucible located within the same furnace to be formed into rods and bars.
Patent GB-191109-A (GB)
Title: Improvements in or relating to pneumatic tyre inner tubes and other inflatable rubber containers
IPC: B60C5/04
Filed: 1921-09-03
Abstract: 191,109. Dunlop Rubber Co., Ltd., and Macbeth, C. Sept. 3, 1921. Air tubes and chambers.- A valve-patch A formed of layers of rubbered fabric is recessed into the air-tube &c. C, the aperture in the latter being larger than the head B' of the valve B, so that the clamping of the valve is confined to the patch.
Patent GB-737237-A (GB)
Title: Improvements in winch and derrick poles
IPC: E04H12/08
Filed: 1953-08-26
Abstract: 737,237. Posts. BOOTH & SONS (BOLTON), Ltd., J., and BOOTH, J. P. July 12, 1954 [Aug. 26, 1953], No. 23535/53. Classes 20 (1) and 20 (2). A winch or like pole is built up from box section units held together by plates i bolted to their ends, each unit being made by welding together, at their edges, four side plates which have rectangular openings d with inwardly rounded edges e and bolt holes g therearound, a wooden or like block j being let into the base unit and a bracket n for a cat-head or lifting point being bolted to the top unit. Cross bracings f, Fig. 3, may be welded to the edges e of adjacent plates. Strengthening bars or flats h may be welded inside the end portions of the units.
Patent GB-189859-A (GB)
Title: Improvements in or relating to reversible locks and latches
IPC: E05B63/04
Filed: 1921-09-05
Abstract: 189,859. Sawbridge, J., and Sawbridge, J. Sept. 5, 1921. Reversible latches.-In a latch of the type in which the latch bolt is pivoted to a swinging arm operated by the follower, the latch is connected to the swinging member by a pin and slot connection and held against detachment for reversal by the flanged end of a second lever pivoted adjacent to the follower-operated lever and moved aside by insertion of the key of the lock or some other implement. The latch bolt a is engaged with the lever b operated by the follower c at d<1>, and a second lever d maintains the engagement by means of an end-flange F which overlaps the pin and slot. This lever is pressed up to cover the pin and slot d<1> by the latch spring f, of which it may form one arm. To reverse the latch bolt a the lever a is pushed aside by the key of the lock bolt inserted into the second keyhole e, or by some other implement inserted in another hole in the casing, when the latch a and lever b can be disconnected.
Patent GB-1033359-A (GB)
Title: Airplane tire
IPC: B29D30/00
Filed: 1964-06-08
Abstract: 1,033,359. Pneumatic aircraft tyres. GOODYEAR TIRE & RUBBER CO. June 8, 1964 [June 10, 1963], No. 23566/64. Heading B7C. So as to minimize groove cracking, a tread or retread for a pneumatic aircraft tyre 5 comprises adjacent the tread surface plies 14, 15, reinforced by discrete synthetic organic filaments such as nylon, polyester or rayon between 3/8 and 7/8 inch in length and generally orientated circumferentially of the tyre. Preferably the plies 14, 15 contain between 4 and 10 parts by weight of filaments. A ply 8 adjacent the carcass is reinforced with wires between <SP>3</SP>/ 8  and <SP>7</SP>/ 8  inch long either in a random dispersion or generally transversely orientated across the tyre.
Patent GB-406336-A (GB)
Title: Improvements in or relating to binoculars, monoculars, telescopes and like viewing instruments
IPC: G02B23/16
Filed: 1932-08-23
Abstract: 406,336. Binoculars &c. ; anglemeasuring instruments. OWEN, H. E. L., 73, Perham Road, West Kensington, and OWEN, R. E. L., 18, Wilton Crescent, Wimbledon, both in London. Aug. 23, 1932, No. 23606. [Classes 97 (i) and 97 (ii).] A binocular &c. telescope is provided with a magnetic compass and a periscope for projecting into the eyepiece a horizontal image of the horizontal portion of the compass rim that is opposite the upper reflector of the periscope when the compass is held horizontally for determining the magnetic bearing of a distant object. A clinometer may also be provided by which the elevation of the observed object may be read off in the eyepiece. As shown, a binocular telescope 1 is provided with a periscope tube 2 having an enlarged head 4 to which is attached a housing 5 containing the upper reflecting prism 10 of the periscope. The housing 5 has an extension 6 in which is rotatably mounted a tube 8 extending from the box 9 of a liquid magnetic compass. The compass card has a vertical rim 9<b> bearing graduations of which an image is projected by the periscope system into the eyepiece 7 so as to be seen as a horizontal image. The lower reflector of the periscope comprises a compound prism 11, 12, the prism 11 having a reflecting surface 11<a>, Fig. 2, inclined at 45‹ to the horizontal, and the prism 12 having a reflecting surface 12a lying in a vertical plane inclined at 45‹ to the exit surface of the prism. The compass card may be graduated on its flat surface to enable bearings to be read directly when the cover 9<d> is raised. To enable angles of inclination to be read, the housing 5 with the compass can be removed from the tube 2 and replaced by a clinometer comprising a weighted pendulum 18, Fig. 4, provided with transparent scale 18a adjacent a window 16 ; a fixed wire 19 forms a zero line. The lens 3 and prisms 11, 12 project an image of the clinometer scale into the eyepiece. Alternatively each of the two telescopes of a pair of binoculars may be provided with a fitting so that an image of the compass graduations is seen in one eyepiece and an image of the clinometer scale in the other.
Patent GB-440716-A (GB)
Title: Improvements in or relating to sharpening apparatus for razor blades
IPC: B24D15/08
Filed: 1935-08-23
Abstract: 440,716. Sharpening razors. FOSNAESS, A. G., Gulsrud, Vikersund, Norway. Aug. 23, 1935, No. 23693. Convention date, Aug. 23, 1934. [Class 60] Apparatus for sharpening razor blades comprises a cylinder 1 of glass, metal, &c. having one or more longitudinal slits 3 therein with sharpened sides, the cylinder being mounted in a holder 6 having an end 5 and an enlarged part 8. The end 5 carries a pin 9 on which is placed a hollow bearing 10 provided with radial arms 11, 12, which freely carry a shaft 14 provided with three projections 15 having heads 16 so as to engage the holes in a blade 17, and upon axial displacement of the shaft 14 to receive the blade beneath the heads 16. Upon rotation of the bearing 10 by means of a handle 13 on the arm 12, the blade is moved round in contact with the inside surface of the cylinder until, upon reaching the slit 3, the front edge is pressed out of the slit and the blade is reversed, so that, upon continued rotation of the bearing 10, the other side of the blade is treated. The shaft 14 may be pressed outwardly by springs &c. and a removable bearing for supporting the free end of the pin 9 may be provided.
Patent GB-975435-A (GB)
Title: Halobutadienes
IPC: C07C17/25
Filed: 1962-06-20
Abstract: Mixtures of the cis and trans isomers of 1-halo-1, 3-butadienes in which the trans isomer predominates in quantity over the cis isomer are prepared by heating a dihalobutene which is a 3, 4-dihalobutene-1 or a 1, 4-dihalobutene-2 or a mixture thereof at a temperature of 400 to 800 DEG C. for 0.1 to 5 seconds, and separating from the reaction products the 1-halo-1, 3-butadiene fraction thereof. In one modification of the above process the 1-halo-1, 3-butadiene is first prepared by the alkaline dehydrohalogenation of a said dihalobutene and is then subjected to the above heat treatment. In a second modification, a cis isomer of a 1-halo-1, 3-butadiene is converted to the trans isomer by subjecting it to the above heat treatment. Specified products are the trans isomers of 1-bromo-, 1-chloro- and 1-iodo-1, 3-butadiene. The reaction may be conducted in a tubular reactor of refractory material such as porcelain, quartz or silica and the reactor may be used empty or packed with an inert finely divided material of high surface area such as silicon carbide, quartz or porcelain chips or ground glass. Examples describe the production of the trans isomer of 1-chloro-1, 3-butadiene and its reaction with maleic anhydride to give 3-chloro -4- cyclohexene-1, 2-dicarboxylic anhydride.  A comparative example describes the preparation of cis -1- chloro-1, 3-butadiene by treatment of 1, 4-dichlorobutene-2 with solid sodium hydroxide.
Patent GB-742134-A (GB)
Title: Control circuit including a semiconducting body
IPC: H04N5/18
Filed: 1953-08-28
Abstract: 742,134. Transistor switching, amplifying and saw-tooth generating circuits. RADIO CORPORATION OF AMERICA. Aug. 28, 1953 [Sept. 9, 1952], No. 23859/53. Class 40 (6). In a control circuit, the load is connected between two similarly arranged electrodes on a transistor, current flow being controlled by a voltage applied to a third electrode. The circuit is particularly applicable to bi-directional switching using junction type transistors and is described as applied to a saw-tooth current-generating circuit for feeding the defection coils of a C.R.T. A continuously varying input may be employed to vary the impedance of the transistor and hence the current in the load. A load 29, Fig. 1, and power source 28 is arranged between the P-type regions 11 and 15, the centre N-type region 13 being biased negatively over resistor 26. The current i ec  flowing in the load 29 is determined by the base current i b , Fig. 1a. Current iec flow is interrupted by a positive pulse 40 applied to the centre region 13. When the characteristic 30, 31 is asymmetrical, two transistors may be parallelled, Fig. 2 (not shown), with their directions of greater conductivity reversed. By the use of negative switching pulses and positive biasing, the circuit may be arranged to be normally non-conducting. In a modification, Fig. 3, current i from capacitor 129 is fed through inductor 131 and increases steadily, Fig. 4, until a positive pulse 140 applied to the central base region causes the transistor to cut off. By choosing the pulse width equal to a half-cycle of oscillation of inductor 131 and capacitor 133 the current reverses and at the termination of the pulse is fed back to the capacitor 129 to complete one cycle of the sawtooth. A smaller synchronizing pulse may be employed if the resistor 135 is returned to a negative source.